Headlight construction.



3. A. CARNEY.

HEADLIGHT CONSTRUCTION.

APPLICAHON FILED JAN. 31. 1911.

1 ,273, 1 48. Patented July 191s.

JAMES A. GARNEY, 01E AURORA, ILLINOIS.

HEADLIGHT CONSTRUCTION.

Specification of Letters Patent.

Patented July 23, 1918.

Application filed January 31, 1917. Serial No. 145.735.

T 0 all whom it may concern:

Be it known that l, JAMES A. CARNEY, a citizen of the United States, residing at Aurora, in the county of Kane and State of Illinois, have invented certain new and (1S(f',ll Iniprovemcnts in Headlight (ore struction, of which the following is a specification.

This invention relates to improvei'ncuts ii i locomotive headlights, and has for its object to provide a. headlight of a nature in which the source of illumination. preferably an electric light bulb or the. like. may be readily adjusted axially oi' the reflector. or about the axis of the reflector, to permit ready focus .ing of the rays. l

Still another object is to provide a loopmotive headlight which may be readily tilted to direct its rays at a desired distance in front of the locomotive. These and other objects will be more fully set forth in the following specification and shown in the accompanying drawing, in which Figure 1 a side elevation of my improved headlight.

Fig. 2 is a rear elevation of the, same; and

Fig. a detail of the b11lb '.1(ljusting means.

Like numerals refer to like elements throughout the drawings, in which. 10 desig nates a base, from which projects upwardly the supporting yoke or bracket 11 rigidly secured to said base, and to a reflector 12 about the lower portion thereof, by screws 12* or the like. A post 13, provided With an angularly disposed bottom portion 13, is 311- tached thereat to the base 10 and projects upwardly therefrom. At its upper portion the post 1.3 is also angularly disposed to form a horizontal arm 13", from which extends upwardly the adjusting rod 14, threaded at its lower portion, as indicated by numeral 14. The rod extends through a suitable aperture in the arm 13 and is provided with adjusting nuts 15, on either side of said arm and threaded on the rod 14. 1 The latter is firmly screwed or threaded into a boss 16' carried by the clamping ring 16, which is split at 16 (see Fig. 2) and provided with a threaded adjusting bolt 17 provided with a crossbar 17 for manual engagen'ient.

Proper rotation of-the bolt 17 will operateto contract or expand the clamping ring 16, as will be apparent. Arm ortions 16 project forwardly from the c aming ring 16 and terminate in a ring 16?, which is riveted,

brazed, or otherwise secured to the reflector 12. the latter being apertured within said ring, 16 to permit the projection therethrough of the stem 18 of a light bulb 18, or other source of lllIHHlnflt-lOll. This bulb 18 screws into a socket 1.), which in turn is carried by a sleeve 20 having a peripheral shoulder or riuu 2% which is suitably rounded on its outer surface to conform to the surface of :1 portion of a sphere. the diameter thereof being substantially equal to the diameter of the interior of clamping ring 16. in which sll 'h shoulder {its and is ad just-able; the shoulder in relation to the interior surface of the ring 16 forming a ball and socket joint. The? sleeve 20 has a rear Wardly extending portion 20, through which lead suitable current wires 21 and 22, respectively, leading to the bindingposts 23 and 24 carried by the post 13, and provided with wire-securing terminal portions 23* and 24* at the. run r of the post 13.

An auxiliary bulb, or source of illumination, 25 is provi led near the lower portion of the reflector 12 in the interior thereof, the same being provided with wires 26 and 27 leading; to the binding-posts 23 and 28, respectively. the latter being similar to posts 23 and 24. and provided with'terminal post portion 28 at. the rear of the bracket. Suitable current. Wires lead from the terminal posts 23, ll-l and 28*, and are connected to a suitable source of current through a proper switch, preferably located in the cab of the locomotive and of Well-known construction, operating to enable the engineer or other persons to close the circuit containing the main bulb 18 or the smaller bulb 25. The former furnishes the main source of illumination during driving of the locomotive or other vehicle, While the smaller one is used while the locomotive is standing in the yard, or not in use, to prevent dazzling of the operators of other locomotives as Well as Waste of current.

' In use when the headlight is being adjusted after its attachment to the locomotive, the bolt 17 may his loosened, permitting expansion oi the ring 16, and the bulb-carrying socket 20 may then be moved either 1ongitudinally of its or about its center, by virtue of the hall and socket construction of the shoulder 20 andring 16, enabling ready focus of the, rays of the bulb projected from the reflector 12. After this focusing is obtained, the bolt 17 may be quickly tightened by hand, securing the bulb in focused position. Whenit is desired to adjust the reflector to direct the rays thereof at a point a proper distance before the locomotive, the nuts 15 may be properly rotated to tilt the reflector 12 about the fixed yoke 11, either up or down as, it; is desired, and when the desired adjustment has been obtained, the nuts 15 will serve to retain the reflector in that position. \Vhen it is desired to remove the reflector, this may be easily done by disconnecting the lightwires from terminal posts 23, 24", and 28 and thereafter removing the base 10 from the locomotive, the entire headlight being removable therewith.

It will be obvious that my invention is susceptible of modifications and impro e ments, and I, do not wish to be restricted to the form shown and described except. as defined in the appended claims.

W'hat 1 claim is:

1. In combination, a roller-tor, a light element coacting therewith, a socket member carrying said light element and having a ball portion, and a clamping ring, the ball portion of .said socket member being seated in said ring and being adjustable with said ball portion, a clamping ring, the ball portion oi Htilfl socket member being seated in paid ring and being; adjustable with said light clement about a point or longitinlinally with respect to said clampii'ig ring, and means reacting with said clamping ring lo eecure said socket member in adjusted position.

i). In combination. a reflector, a light ole mcnt counting therewith, means carrying said light element, said tllt'llllh' comprising a i-lampin ring, a second ring secured to said reflector, and a socket member having a ball portion htillttl in said l'iret named ring, and adjustable \vitb mid ligbl element, longitudinally in said ring.

in testimony whereof,

my name,

JAMES A. CA RNEY.

\Vitnesscs:

C. \V. Ronnn'rson, H. W. MGMILLAN.

1 have enbwribed 

